CN110758189A - Automobile seat framework with backrest rotation automatic locking function - Google Patents
Automobile seat framework with backrest rotation automatic locking function Download PDFInfo
- Publication number
- CN110758189A CN110758189A CN201911100849.5A CN201911100849A CN110758189A CN 110758189 A CN110758189 A CN 110758189A CN 201911100849 A CN201911100849 A CN 201911100849A CN 110758189 A CN110758189 A CN 110758189A
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- Prior art keywords
- locking
- plate
- backrest
- framework
- cushion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/90—Details or parts not otherwise provided for
- B60N2/919—Positioning and locking mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/90—Details or parts not otherwise provided for
- B60N2/919—Positioning and locking mechanisms
- B60N2002/952—Positioning and locking mechanisms characterised by details of the locking system
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention relates to an automobile seat framework with a backrest rotation automatic locking function, relates to the technical field of automobile seats, and aims to solve the problem that the existing automobile seat cannot be locked when a backrest rotates to any angle and cannot meet the requirement of different passengers on the comfortable angle between the backrest and a seat cushion. The seat cushion comprises a seat cushion framework, a backrest framework and a backrest locking mechanism, wherein fixed plates are respectively arranged on two sides of the seat cushion framework, and the backrest framework is rotationally connected to the fixed plates; the backrest locking mechanism comprises a locking disc fixedly connected to the backrest framework, a locking plate rotatably connected to one side of the fixed plate close to the cushion and a limiting mechanism driving the locking plate to rotate; the edge of the upper side of the locking plate is provided with a second locking tooth close to one end of the backrest framework. The invention has the function of locking the backrest when the backrest rotates to any angle.
Description
Technical Field
The invention relates to the technical field of automobile seats, in particular to an automobile seat framework with a backrest rotation automatic locking function.
Background
The existing seat back is generally arranged to be reversible, namely when a person in the back row needs to go out, the seat back is turned down towards one side of a seat cushion; when a person sits and uses the seat, the seat backrest is turned upwards and is fixed and locked.
To meet the above demand, the invention under the publication number CN106828212B discloses a seat back locking device and a method of using the same. It includes: the backrest connecting plate is connected to the side face of the seat backrest, the fixed plate is connected with the bottom plate of the vehicle body, and the supporting plate is fixedly connected with the fixed plate; the backrest connecting plate, the fixing plate and the supporting plate are coaxially connected together through a first rivet in sequence, and the fixing plate comprises a first limiting section, a second limiting section and an arc section; the first limiting assembly and the second limiting assembly are positioned on the backrest connecting plate and used for locking the backrest connecting plate on the supporting plate; unlocking the backrest connecting plate through rotation of the first limiting assembly; and the spring is used for returning the first limiting assembly to the locking position. The using method comprises the following steps: the limiting part is separated from the contact with the supporting plate, and unlocking is carried out; force is applied to make the backrest rotate and fold; the second limiting component is contacted with the second limiting section by applying force, and the first limiting component is restored to be contacted with the supporting plate.
The seat backrest lifting device is simple in structure and can lock the lifted seat backrest.
However, the seat backrest locking device can only lock the backrest when the backrest rotates to the second limiting component and contacts with the first limiting section or the second limiting section, and cannot lock the backrest when the backrest rotates to any angle, so that the requirement of different passengers on the comfortable angle between the seat backrest and the seat cushion cannot be met.
Disclosure of Invention
The invention aims to provide an automobile seat framework with a backrest rotation automatic locking function, which has the function of locking a backrest when the backrest rotates to any angle.
The above object of the present invention is achieved by the following technical solutions:
an automobile seat framework with a backrest rotation automatic locking function comprises a cushion framework, a backrest framework and a backrest locking mechanism, wherein fixed plates are respectively arranged on two sides of the cushion framework, and the backrest framework is rotationally connected to the fixed plates;
the backrest locking mechanism comprises a locking disc fixedly connected to the backrest framework, a locking plate rotationally connected to one side, close to the cushion, of the fixed plate and a limiting mechanism driving the locking plate to rotate, the locking plate and the locking disc are located in the same plane, one end, close to the cushion framework, of the locking disc is fan-shaped, the circle center of the fan-shaped circle is located at the rotationally connected position of the backrest framework and the fixed plate, and first locking teeth are arranged on the edge of the fan-shaped circle; a second locking tooth is arranged at one end, close to the backrest framework, of the edge of the upper side of the locking plate; when the backrest is overlapped with the cushion, the position right above the locking plate corresponds to the edge plane of the locking disc, and when the backrest is separated from the cushion, the position right above the locking plate corresponds to the edge arc surface of the locking disc;
the limiting mechanism drives the locking plate to rotate so that the second locking teeth are meshed with or disengaged from the first locking teeth.
By adopting the technical scheme, before the backrest framework is overlapped with the cushion framework through rotation, the limiting mechanism is firstly adjusted to be separated from limiting of the locking plate, so that the first locking teeth on the locking disc are separated from being meshed with the second locking teeth on the locking plate, and the backrest framework drives the locking disc to rotate to be overlapped with the cushion; when the backrest framework is separated from the cushion, the backrest is pushed, the backrest framework drives the locking disc to rotate, the arc-shaped edge of the locking disc is opposite to the locking plate, after the backrest rotates to a required angle, the limiting mechanism is started, the locking plate is driven to be in a meshing state with the locking disc again, the locking plate is limited under the meshing state, and the backrest locking mechanism is enabled to lock the backrest at a corresponding position. Because the locking mechanism of the seat backrest realizes the locking of the seat backrest through the engagement of the first locking teeth and the second locking teeth on the locking plate and the locking disc, the backrest can rotate within the angle range of the distribution of the first locking teeth, the adjustment and the locking of the backrest at any angle are realized, the requirement of personnel on the use comfort level of the seat is met, and the use is convenient.
The invention is further configured to: the limiting mechanism comprises a limiting plate rotationally connected below the locking plate, a pin shaft arranged on one side of the limiting plate, a limiting hole formed in the fixing plate along the rotating radius of the pin shaft, and a locking piece for driving the pin shaft to rotate to a locking position; the locking plate lower extreme is equipped with the locking boss, the limiting plate is close to locking plate one side be equipped with locking boss matched with locking concave station, the locking piece drive the round pin axle and make the locking plate to the locking concave station with the locking boss breaks away from the complex direction and rotates.
Through adopting above-mentioned technical scheme, locking piece drive pin axle removes along spacing hole, thereby make the limiting plate take place to rotate, at limiting plate pivoted in-process, when the locking boss of locking plate lower extreme matches with the locking concave station on the limiting plate under the action of gravity, break away from the meshing between the second locking tooth on the locking plate and the first locking tooth on the locking dish, the realization is to the unblock of seat back, rotatable back after the unblock, adjust the angle of back, after the angle modulation of back, rethread locking piece drive pin axle antiport, make break away from the cooperation between locking boss and the locking concave station, the locking plate rises under the promotion of limiting plate and take place the meshing between the locking dish, realize the relocking to the back.
The invention is further configured to: the locking piece includes torsional spring and drive plate, be equipped with the handle on the drive plate, the drive plate rotate connect in the fixed plate is kept away from cushion one side, the rotation hookup location of drive plate with the rotation hookup location of limiting plate is located same one side in spacing hole, the torsional spring cover is located on the rotation connecting axle of drive plate, just the one end stabilizer blade of torsional spring is fixed, the other end stabilizer blade is near the round pin axle is close to locking concave station one side, be equipped with the flange on the drive plate, the flange keeps off and locates the round pin axle is kept away from the torsional spring is by establishing position one side.
By adopting the technical scheme, the rotating connection position of the driving plate and the rotating connection position of the limiting plate are positioned on the same side of the limiting hole, so that the rotating direction of the driving plate at the limiting hole is the same as the bending direction of the rotating arc line of the limiting plate at the limiting hole. Under the normality, the round pin axle rotates along spacing hole under the effort of torsional spring, until the round pin axle supports and leans on the flange, under this state, be in the engaged state between lock plate and the lock dish, during the unblock, personnel rotate the handle on the drive plate, the handle drives the drive plate and connects the flange rotation on the drive plate, the flange is followed the effort that promotes the round pin axle and overcome the torsional spring and is rotated along spacing hole, when the round pin axle rotates the other end in spacing hole, break away from the meshing between lock plate and the lock dish, realize the unblock to the back, can freely adjust the angle after the back unblock, or carry out the coincide between back and the cushion, loosen the handle after the adjustment, the round pin axle promotes the round pin axle again under the effort of torsional spring and moves to the position near the flange along spacing hole, realize the locking of seat.
The invention is further configured to: be equipped with the pin on the fixed plate, be equipped with the spout corresponding to on the drive plate the pin position, the end of pin slide set up in the spout, the round pin axle is in rotate under the promotion of torsional spring extremely during spacing hole clockwise or anticlockwise's one end, the fixed plate rotates extremely the pin is located spout anticlockwise or clockwise's one end.
By adopting the technical scheme, in the process that the pin shaft is pushed by the torsion spring to rotate to one end of the limiting groove, the pin shaft can also push the flange to enable the drive plate to rotate to the position of one end of the pin in the sliding groove, at the moment, the clockwise and anticlockwise rotation of the drive plate is stopped by the pin shaft and the pin respectively and is difficult to move, the certainty of the position of the drive plate is ensured, and the use is convenient for personnel to use at any time.
The invention is further configured to: the locking plate is characterized in that a spring leaf is arranged on one side of the locking plate, one end of the spring leaf is fixedly connected to the fixing plate, the other end of the spring leaf is a free end, a smooth bulge is arranged on one side, close to the fixing plate, of the free end of the spring leaf, the bulge is arranged in the rotating range of the edge arc surface of the locking disc, and the bulge is trapped in the locking disc and the extending plane of the locking plate when the spring leaf is in a free state.
By adopting the technical scheme, when the backrest is unlocked, the limiting plate and the locking plate rotate under the action of the driving plate, the locking plate approaches to one side of the limiting plate, the locking concave table on the limiting plate is matched with the locking boss on the locking plate, the backrest is unlocked, the protrusion on the spring piece is propped against the locking plate, and a person can adjust the angle of the backrest within a certain range; when a person turns the backrest forwards, the backrest drives the locking disc to rotate until the edge arc surface of the locking disc is separated from the position opposite to the protrusion on the spring piece, at the moment, the protrusion is separated from the support of the locking disc, and sinks in the extending plane of one side, close to the locking disc, of the locking plate under the action of the elastic force of the spring piece to form a blocking effect on the locking plate; when personnel followed with the back rotatory expansion under the cushion coincide state, fixed connection took place equally in the locking dish on the back and rotates to make the edge cambered surface on the locking dish be close to the locking plate top gradually, the tip of cambered surface supports at the in-process that is close to gradually and pushes away the arch and make the arch leave the extension plane between locking plate and the locking dish under the elastic bending of spring leaf, removes protruding restriction to the locking plate, the locking plate then rotates under the effort of torsional spring and rises and meshes mutually with the locking dish, the realization is to the locking of back under the standing position. The movement of lock plate has further been controlled in the setting of spring leaf for when personnel set up the back from the coincide state, need not manual operation drive plate, directly turn up the back, can realize the locking of back, further made things convenient for the use.
The invention is further configured to: the bulges comprise a first bulge arranged above and a second bulge arranged below, the first bulge and the second bulge are separately arranged, and the protruding height of the first bulge is higher than that of the second bulge.
Through adopting above-mentioned technical scheme, when first arch was hugged closely the locking dish surface by the locking dish top to its bellied top, certain clearance had between second arch and the locking plate to avoided the protruding direct and locking plate surface contact of second and produced frictional force, and then when preventing the unblock, the locking plate can't rotate the whereabouts and make the condition emergence that second locking tooth breaks away from first locking tooth under the action of gravity.
The invention is further configured to: the locking dish is close to arc edge of cushion one side is equipped with to support and pushes away the platform.
Through adopting above-mentioned technical scheme, support and push away the platform and directly contact with protruding when the locking dish extrusion is protruding, avoid the wearing and tearing that first locking tooth directly caused with protruding contact or collapse.
The invention is further configured to: the locking plate and the locking plate are far away from the surface on one side of the fixed plate and are arranged in the same plane, a cover plate is arranged on the surface close to the plane, the spring piece is arranged on the cover plate and is far away from the side of the fixed plate, and a communicating hole for the protrusion to pass through is formed in the cover plate.
Through adopting above-mentioned technical scheme, apron and fixed plate restrict locking dish and lock plate jointly, prevent to break away from the phenomenon of meshing after staggering between locking dish and the lock plate and take place, simultaneously, also can protect locking dish and lock plate, prevent to take place to collude between cloth on the cushion or passenger's clothes and the back locking mechanism and link to each other, have reduced the emergence of the unexpected situation in the use, have guaranteed the security of using.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the locking mechanism of the backrest realizes the locking of the backrest of the seat through the engagement of the locking disc and the first locking teeth and the second locking teeth on the locking plate, so that the backrest can rotate within the angle range of the distribution of the first locking teeth, the adjustment and the locking of the backrest at any angle are realized, the requirement of personnel on the use comfort level of the seat is met, and the use is convenient;
2. through setting up the spring leaf, set up the arch on the spring leaf, further controlled the motion of lock plate for when personnel set up the back from the coincide state, need not manual operation drive plate, directly turn up the back, can realize the locking of back, further made things convenient for the use.
Drawings
Fig. 1 is a schematic view of the entire structure of the present invention in a first view, and is intended to show a structure of a seatback lock mechanism on a side close to a seat cushion, in which neither a cover plate nor a spring plate is shown.
Fig. 2 is a schematic view of the backrest latch mechanism of fig. 1 with the addition of a spring plate.
Fig. 3 is a schematic view of the backrest lock mechanism of fig. 2 with the addition of a cover plate.
Fig. 4 is a schematic view of the entire structure of the present invention in a second view, and is intended to show the structure of the seatback lock mechanism on the side away from the seat cushion.
Fig. 5 is an overall structural diagram of the drive plate.
In the drawings, 1, a backrest frame; 2. a cushion frame; 3. a fixing plate; 4. a backrest locking mechanism; 41. a locking plate; 411. a first locking tooth; 412. a pushing table; 42. a lock plate; 421. a second locking tooth; 43. a limiting mechanism; 431. a limiting plate; 432. a locking concave platform; 433. locking the boss; 434. a pin shaft; 435. a limiting hole; 44. a locking member; 441. a drive plate; 442. blocking edges; 443. a handle; 444. a chute; 445. a pin; 446. a torsion spring; 5. a spring plate; 51. a protrusion; 511. v-shaped folds; 512. a W-shaped fold; 6. a cover plate; 61. and a communicating hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the automobile seat frame with the backrest rotation automatic locking function disclosed by the invention comprises a seat cushion frame 2, a backrest frame 1 and a backrest locking mechanism 4, wherein fixing plates 3 are respectively arranged on two sides of the seat cushion frame 2, and the backrest frame 1 is rotationally connected to the fixing plates 3.
Referring to fig. 1, the backrest locking mechanism 4 includes a locking plate 41 fixedly connected to the backrest frame 1, a locking plate 42 rotatably connected to one side of the fixed plate 3 close to the seat cushion, and a limiting mechanism 43 driving the locking plate 42 to rotate, the locking plate 41 and the locking plate 42 are disposed in the same plane, and a cover plate 6 (see fig. 3) for preventing the locking plate 41 and the locking plate 42 from being staggered is disposed closely to the surfaces of the locking plate 41 and the locking plate 42 away from the fixed plate 3; one end of the locking disc 41, which is close to the seat cushion framework 2, is fan-shaped, the circle center of the fan-shaped is located at the rotary connection position of the backrest framework 1 and the fixed plate 3, and the edge of the fan-shaped is provided with a first locking tooth 411; the edge of the upper side of the lock plate 42 near the lock disk 41 is provided with a second lock tooth 421; when the backrest is overlapped with the cushion, the position right above the locking plate 42 corresponds to the edge plane of the locking disc 41, and when the backrest is separated from the cushion, the position right above the locking plate 42 corresponds to the edge arc surface of the locking disc 41.
Referring to fig. 1 and 2, the limiting mechanism 43 includes a limiting plate 431 rotatably connected to the lower side of the locking plate 42, a pin 434 disposed at one side of the limiting plate 431, a limiting hole 435 formed in the fixing plate 3 along a rotation radius of the pin 434, and a locking member 44 for driving the pin 434 to rotate to a locking position; the lower extreme of lock plate 42 is provided with notch cuttype locking boss 433, and limiting plate 431 is close to lock plate 42 one side and is provided with locking concave station 432 with locking boss 433 matched with, and locking boss 433 all is provided with excessive circular arc so that the cooperation between the two with break away from the cooperation with locking concave station 432 the edge of limiting plate 431, locking piece 44 driving pin shaft 434 and make lock plate 42 break away from the complex direction rotation to locking concave station 432 and locking boss 433.
Referring to fig. 4 and 5, the locking member 44 includes a torsion spring 446 and a driving plate 441, a handle 443 is disposed on the driving plate 441, the driving plate 441 is rotatably connected to one side of the fixing plate 3 away from the seat cushion, a rotational connection position of the driving plate 441 and a rotational connection position of the limiting plate 431 are located at the same side of the limiting hole 435, the torsion spring 446 is sleeved on the rotational connection shaft of the driving plate 441, a leg at one end of the torsion spring 446 is fixedly inserted on the fixing plate 3, a leg at the other end of the torsion spring 446 abuts against one side of the pin shaft 434 close to the locking concave table 432, a rib 442 is disposed on the driving plate 441, and the.
Referring to fig. 4 and 5, in order to limit the rotation of the driving plate 441 in the direction not limited by the pin 434, a pin 445 is disposed on the fixing plate 3, a sliding groove 444 is disposed on the driving plate 441 corresponding to the pin 445, an end of the pin 445 is slidably disposed in the sliding groove 444, and when the pin 434 is pushed by the torsion spring 446 to rotate to one end of the limiting hole 435 in the clockwise or counterclockwise direction, the fixing plate 3 rotates to one end of the pin 445 in the counterclockwise or clockwise direction of the sliding groove 444. In the process that the pin shaft 434 is pushed by the torsion spring 446 to rotate to one end of the limiting groove, the pin shaft 434 can also push the flange 442 to enable the driving plate 441 to rotate to the position where the pin 445 is located at one end of the sliding groove 444, at the moment, the clockwise rotation and the counterclockwise rotation of the driving plate 441 are respectively stopped by the pin shaft 434 and the pin 445 and are difficult to move, the position certainty of the driving plate 441 is guaranteed, and the manual use is convenient for people.
Referring to fig. 2, a spring leaf 5 is connected to one side of the cover plate 6, which is away from the locking plate 42 and the locking disc 41, one end of the spring leaf 5 is riveted on the fixing plate 3, the other end is a free end, a protrusion 51 is protrudingly arranged on one side of the free end, which is close to the fixing plate 3, and a communication hole 61 for the protrusion 51 to pass through is formed in the cover plate 6. The protrusion 51 comprises a first protrusion located above and a second protrusion located below, the first protrusion and the second protrusion are separately arranged, and the height of the first protrusion is higher than that of the second protrusion, for the sake of convenience of processing, the protrusion in this embodiment of the present invention is formed by folding the free end of the spring plate 5 to one side close to the fixing plate 3, in order to make the height between the first protrusion and the second protrusion have a significant difference, the first protrusion in this embodiment of the present invention is a V-shaped fold 511, the second protrusion is a W-shaped fold 512 formed by folding the middle of the folded V-shaped portion to the other side, the projection of the V-shaped fold 511 on the fixing plate 3 falls within the rotation range of the arc-shaped edge of the locking plate 41, the projection of the W-shaped fold 512 on the fixing plate 3 falls within the range of the locking plate 42 in the locked state, the W-shaped fold 512 falls within the extension plane of the locking plate 41 and the locking plate 42 in the free state, in addition, in order to prevent the lock disc 41 from damaging the first locking teeth 411 during deformation of the pushing projection 51, an abutting table 412 is provided at an arc-shaped edge of the lock disc 41 on the side close to the seat cushion.
The implementation principle of the invention is as follows: in the normal standing state of the backrest, the lock plate 42 and the lock plate 41 are locked by the engagement of the first lock teeth 411 and the second lock teeth 421. When the angle of the backrest needs to be adjusted, a person rotates the handle 443 on the driving plate 441, the handle 443 drives the driving plate 441 and the rib 442 connected to the driving plate 441 to rotate, the rib 442 pushes the pin 434 to rotate along the limiting hole 435 against the force of the torsion spring 446, when the pin shaft 434 rotates to the other end of the limiting hole 435, the locking concave platform 432 on the limiting plate 431 connected with the pin shaft 434 rotates to the direction opposite to the locking plate 42, the locking plate 42 rotates and descends under the action of gravity, the locking convex platform 433 on the locking plate 42 descends to be matched with the locking concave platform 432 on the limiting plate 431, the locking plate 42 is disengaged from the locking disc 41, the backrest is unlocked, the angle can be freely adjusted after the backrest is unlocked, or the backrest and the cushion are folded, and simultaneously, the protrusions 51 on the spring pieces 5 are separated from the side surfaces of the locking plates 42 far away from the fixed plate 3.
When the angle of the backrest is adjusted only within a certain range, the angle change of the backrest is small, the V-shaped folds 511 on the protrusions 51 still prop against the arc-shaped edge of the locking disc 41, after the adjustment is completed, the handle 443 is released, the pin 434 pushes the pin 434 to move along the limiting hole 435 to a position close to the rib 442 under the action of the torsion spring 446 again, and the seat is locked at the adjusted position.
When the backrest and the cushion are overlapped after unlocking, the rotation angle of the backrest is large, the backrest drives the locking disc 41 to rotate until the arc-shaped edge of the locking disc 41 is separated from the position opposite to the protrusion 51 on the spring piece 5, at the moment, the protrusion 51 is separated from the support of the locking disc 41, and sinks in the extending plane of one side, close to the locking disc 41, of the locking plate 42 under the action of the self elastic force to form a stopping action on the locking plate 42, and when a person releases the handle 443, the locking plate 42 cannot rotate in the direction close to the locking disc 41 due to the interference of the protrusion 51, and therefore cannot be located at the locking position; when a person rotates and unfolds the backrest from a state of being overlapped with the cushion, the locking disc 41 fixedly connected to the backrest also rotates, the arc-shaped edge on the locking disc 41 is gradually close to the position right above the locking plate 42, the abutting and pushing table 412 at the end part of the arc-shaped edge abuts against and pushes the protrusion 51 in the process of gradually approaching the protrusion 51, so that the spring piece 5 is bent and deformed and drives the protrusion 51 to leave the extending plane between the locking plate 42 and the locking disc 41, the limitation of the protrusion 51 on the locking plate 42 is removed, the locking plate 42 rotates and rises under the action force of the torsion spring 446 to be meshed with the locking disc 41, the backrest is locked in the standing state, the driving plate 441 does not need to be operated manually in the process, the backrest only needs to be directly turned up, the backrest can be locked, and the use is greatly facilitated.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. An automobile seat framework with a backrest rotation automatic locking function comprises a cushion framework (2), a backrest framework (1) and a backrest locking mechanism (4), wherein fixing plates (3) are respectively arranged on two sides of the cushion framework (2), and the backrest framework (1) is rotationally connected to the fixing plates (3);
the method is characterized in that: the backrest locking mechanism (4) comprises a locking disc (41) fixedly connected to the backrest framework (1), a locking plate (42) rotatably connected to one side, close to the cushion, of the fixed plate (3) and a limiting mechanism (43) driving the locking plate (42) to rotate, the locking plate (42) and the locking disc (41) are located in the same plane, one end, close to the cushion framework (2), of the locking disc (41) is fan-shaped, the position of the circle center of the fan-shaped circle center is located at the position, rotatably connected with the backrest framework (1) and the fixed plate (3), and first locking teeth (411) are arranged on the edge of the fan-shaped circle center; a second locking tooth (421) is arranged at one end, close to the backrest framework (1), of the upper side edge of the locking plate (42); when the backrest is overlapped with the cushion, the edge plane of the locking disc (41) is corresponding to the position right above the locking plate (42), and when the backrest is separated from the cushion, the edge arc surface of the locking disc (41) is corresponding to the position right above the locking plate (42);
the limiting mechanism (43) drives the locking plate (42) to rotate so that the second locking teeth (421) are meshed with or disengaged from the first locking teeth (411).
2. The vehicle seat frame with the backrest rotation automatic locking function according to claim 1, characterized in that: the limiting mechanism (43) comprises a limiting plate (431) rotatably connected below the locking plate (42), a pin shaft (434) arranged on one side of the limiting plate (431), a limiting hole (435) formed in the fixed plate (3) along the rotating radius of the pin shaft (434), and a locking piece (44) for driving the pin shaft (434) to rotate to a locking position; locking plate (42) lower extreme is equipped with locking boss (433), limiting plate (431) are close to locking plate (42) one side be equipped with locking boss (433) matched with locking concave station (432), locking piece (44) drive round pin axle (434) and make locking plate (42) to locking concave station (432) with locking boss (433) break away from the complex direction rotation.
3. The vehicle seat frame having a backrest rotation automatic lock function according to claim 2, characterized in that: the locking piece (44) comprises a torsion spring (446) and a driving plate (441), a handle (443) is arranged on the driving plate (441), the driving plate (441) is rotatably connected to one side, far away from the cushion, of the fixing plate (3), the rotation connecting position of the driving plate (441) and the rotation connecting position of the limiting plate (431) are located on the same side of the limiting hole (435), the torsion spring (446) is sleeved on the rotation connecting shaft of the driving plate (441), one end support leg of the torsion spring (446) is fixed, the other end support leg of the torsion spring (446) is close to the pin shaft (434) on one side of the locking concave table (432), a blocking edge (442) is arranged on the driving plate (441), and the blocking edge (442) is arranged on one side, far away from the torsion spring (446) by arranging.
4. The vehicle seat frame having a backrest rotation automatic lock function according to claim 3, characterized in that: be equipped with pin (445) on fixed plate (3), be equipped with spout (444) on drive plate (441) corresponding to pin (445) position, the end of pin (445) slide set up in spout (444), round pin axle (434) under the promotion of torsional spring (446) rotate to when spacing hole (435) clockwise or anticlockwise's one end, fixed plate (3) rotate to pin (445) are located spout (444) anticlockwise or clockwise's one end.
5. The vehicle seat frame having a backrest rotation automatic lock function according to claim 2, characterized in that: a spring piece (5) is arranged on one side of the locking plate (42), one end of the spring piece (5) is fixedly connected onto the fixed plate (3), the other end of the spring piece is a free end, a smooth bulge (51) is convexly arranged on the side face, close to the fixed plate (3), of the free end, and the bulge (51) sinks into one side, close to the locking disc (41), of the locking plate (42) when the locking boss (433) is matched with the locking concave table (432) and abuts against the edge above the locking plate (42).
6. The vehicle seat frame having a backrest rotation automatic lock function according to claim 5, characterized in that: the bulges (51) comprise a first bulge arranged above and a second bulge arranged below, the first bulge and the second bulge are arranged separately, and the protruding height of the first bulge is higher than that of the second bulge.
7. The vehicle seat frame having a backrest rotation automatic lock function according to claim 5, characterized in that: and an abutting and pushing table (412) is arranged at the arc-shaped edge of one side, close to the cushion, of the locking disc (41).
8. The vehicle seat frame having a backrest rotation automatic lock function according to claim 5, characterized in that: the locking disc (41) and the locking plate (42) are arranged on the same plane far away from one side of the fixed plate (3), a cover plate (6) is arranged on the same plane in a clinging mode, the spring piece (5) is arranged on one side, far away from the fixed plate (3), of the cover plate (6), and a communicating hole (61) for the protrusion (51) to penetrate through is formed in the cover plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911100849.5A CN110758189B (en) | 2019-11-12 | 2019-11-12 | Automobile seat framework with backrest rotation automatic locking function |
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| CN201911100849.5A CN110758189B (en) | 2019-11-12 | 2019-11-12 | Automobile seat framework with backrest rotation automatic locking function |
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| CN110758189A true CN110758189A (en) | 2020-02-07 |
| CN110758189B CN110758189B (en) | 2021-08-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114771368A (en) * | 2022-05-17 | 2022-07-22 | 诺博汽车系统有限公司 | Seat back adjusting mechanism and seat |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2085959B (en) * | 1980-09-27 | 1984-06-06 | Rentrop Hubbert & Wagner | Seats with adjustable backrests |
| CN201423945Y (en) * | 2009-04-20 | 2010-03-17 | 郧县伟士通汽车零件有限责任公司 | Angle modulation assembly of vehicle chair |
| CN101927712A (en) * | 2010-08-16 | 2010-12-29 | 常州华阳万联汽车附件有限公司 | Car seat with angle adjusting device |
| CN201685725U (en) * | 2009-10-12 | 2010-12-29 | 重庆升业汽车零部件有限公司 | Tooth claw type angle adjuster assembly |
-
2019
- 2019-11-12 CN CN201911100849.5A patent/CN110758189B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2085959B (en) * | 1980-09-27 | 1984-06-06 | Rentrop Hubbert & Wagner | Seats with adjustable backrests |
| CN201423945Y (en) * | 2009-04-20 | 2010-03-17 | 郧县伟士通汽车零件有限责任公司 | Angle modulation assembly of vehicle chair |
| CN201685725U (en) * | 2009-10-12 | 2010-12-29 | 重庆升业汽车零部件有限公司 | Tooth claw type angle adjuster assembly |
| CN101927712A (en) * | 2010-08-16 | 2010-12-29 | 常州华阳万联汽车附件有限公司 | Car seat with angle adjusting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114771368A (en) * | 2022-05-17 | 2022-07-22 | 诺博汽车系统有限公司 | Seat back adjusting mechanism and seat |
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| Publication number | Publication date |
|---|---|
| CN110758189B (en) | 2021-08-31 |
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